Jest No Tests found
Solution 1
Your output says that testMatch
had 1 match
, which may be your __tests__/index.test.js
file. It seems that your testPathIgnorePatterns
is causing that test suite to be ignored. No tests found In /usr/src/app
says that Jest is looking for tests in /usr/src/app
, and testPathIgnorePatterns: /node_modules/,/src,src
says that Jest is ignoring files in /src
directories.
Either point Jest to look at the location of your __tests__/index.test.js
file if it is outside the /src directory, or stop testPathIgnorePatterns
from ignoring the /src directory.
Solution 2
If you have file structure such as the following
myFolder
│ myFile1.js
│ myFile2.js
│ ...
│
└───__tests__
myFile1.spec.js
myFile2.spec.js
...
then you need to have in jest.config.js
the following pattern for testMatch
property:
testMatch: ['**/__tests__/*.js?(x)'],
A simple example of jest.config.js
:
const jestConfig = {
verbose: true,
testURL: "http://localhost/",
'transform': {
'^.+\\.jsx?$': 'babel-jest',
},
testMatch: ['**/__tests__/*.js?(x)'],
}
module.exports = jestConfig
Solution 3
In package.json there is a pattern that is used to find test file. In this pattern, you can change it according to your file location or make it the global pattern.
I wrote a test, not in the specific folder and follow a naming convention *.test.js
and change testMatch
"testMatch": [
"<rootDir>/src/**/*.(test).{js,jsx,ts,tsx}",
"<rootDir>/src/**/?(*.)(spec|test).{js,jsx,ts,tsx}"
],
Solution 4
You can try running jest
without any parameters. A key thing to note is the test file names have to follow the convention *.test.js
or *.spec.js
.
Solution 5
If you want to run all the tests inside the tests folder you can simply do the following
jest __tests__ --watch
Kendall
I websites, games and rich interactive applications (RIAs). I am proficient in PHP 4/5, MySQL, JQuery. use and develop for Web Services such as Facebook, Instagram, Twitter, Google and Youtube. I develop using frameworks such as VueJS, jQuery, PugJS, Sass, SlimPHP, Laravel, Idiorm and Paris, and Wordpress. I also worked using Adobe Illustrator, Adobe Photoshop, Git and Docker software applications.
Updated on July 09, 2022Comments
-
Kendall almost 2 years
running docker mhart/alpine-node:8 on macOS with
nodejs (6.10.3-r0) (18/18) yarn 0.24.6 jest 20.0.4
I have a __tests__/index.test.js file however, when running the code
node_modules/.bin/jest --watchAll
I get the below outputNo tests found
In /usr/src/app
5 files checked.
testMatch: /__tests__//*.js?(x),**/?(*.)(spec|test).js?(x) - 1 match
testPathIgnorePatterns: /node_modules/,/src,src - 0 matches
Pattern: "" - 0 matchesI've re-installed the package numbers times but to no avail.
-
Max almost 4 yearsIs there a way to just use the
.js
extension instead oftest.js
orspec.js
?